Interlocking strip shingles



Get. 7 1924. 1,510,533.

H. ABRAHAM INTERLOGKING STRIP SHINGLES Filed May 26, 1933 WNW INVENTOR HERBERT ABRAHAM m-am A TTORNE Y Patented a. 7-, 1924.

v UNITED s'r-ArEs PATENT OFFICE.

HERBERT ABRAHAM, OF NEW YORK, N. Y., ASSIGNOR TO THE RUBERDID COMPANY,

A. CORPORATION OF NEW JERSEY.

INTEBLOGKING STRIP SK ING-LES.

provement in Interlocking Strip Shingles,

, of which the following is a specification. v This invention relates to improvements in prepared roofing strips having their lower edges broken at regular intervals by recesses leading into slots to form shingle-like portions that simulate separated individual shingles when the strips are laid in overlapping courses.

One of the objects of the invention is to provide interlocln'ng strips .formed with tongues that extend downward of the shingle-like portions and look into the slots of an underlying strip. Anotherobject is to provide interlocking strips of such shape that they can be cut from a web of prepared roofing material with minimum waste.

A further object is to provide strips that when laid in interlocked. relation form an ornamental roof having three thicknesses of material adjacent the slots and thereby giving the roof a desirable massive appearance.

n the accompanying drawings, illustrating a preferred embodiment of the invention,

Figure 1 is a plan view of several of the strips laid in interlocked relation,

Figure 2 is a plan view of one of the strips, and

Figure 3 is a plan view of a length of roofing material indicating the manner of cutting the strips.

The strip comprises an elongated body 1 having its lower edge broken by a recess or re-en'tering le .2 which terminates in a parallel-sided slot 3' and divides said edge into two similar shingle-like portions v4. The strip has a shoulder 5 at either end each of which corresponds to half the width of a slot 3. The length of each shin lelike portion 4 is substantially thrice t at of a slot 3, both being measured transversely of the strip. Extending across the tion 4: is a pair of separated slits'ffi the adjacent ends of which are spaced apart a distance substantially equal to the width of a slot 3,'said slits forming an integral tongue 7 at the lower end of of the tions. Furthermore, it is to be unde lower third part of each shingle-like per-- portions 4. Preferably the ends of the slits are turned at right angles to their length as seen in the drawings, to provide a flexible connection for the tongue so that it may be bent without breaking. v

The strips may be formed from a web 8 with an economical use of material by cutting so that the shingle-like portions 4 of opposite strips interfit as indicated in Fig. 3.. In this'manner a plurality of strips may be produced without waste other than that caused by cutting out the slots 3.

The strips are laid upon a roof in overlapping courses with the tongues'.7 of each course inserted under the slots 3 of the next lower course, as seen in Fig; 1', and they are fastened as usual by nails driven through the body portions above the inner ends of the slots, the nail-heads being covered by the shingle-like portions of the next upper course. When thus laid the several courses are interlocked with the shingle-like portions held down by reason of the engagement of the tongues in the slots, a part of each tongue being visible through the slots, and with substantially two-thirds of the extent of each of said shingle portions exposed to the weather.

A roof laid with my improved strips has an attractive and ornamental appearance similar. to that of aroof laid with strips of my reissue Patent No. 15,280 of February 7, 1922, but with an additional massive appearance due to the three thicknesses of material adjacent each of the slots. "While I have described the invention with particular reference. to a twin shingle, it ma be embodied in an-individual shingle or m a strip composed of any desired number of connected shingle-like that various modifications in the shape of the strip may be made without departing from the scope of the invention.

What I claim is:

1. A roofing strip of flexible waterproof material having along one edge a pluralitv of'projections with interveni spaces, eac projection having parallel si es,- an angm lar end, and aligned slits extending mwards from the converging edges of the end, the slits being separated a distance equal to the space between the parallel sidw of adjacent projections.

2. A roofing strip r flexible waterproof material having along one edge a plurality of projections with intervening spaces, each projection having parallel sides, an angular end, and aligned slits extending inwards from the converging end-edges transversely of the lower third portion of the projection,

the slits being separated a distance equal to g the space between the parallel sides of adjacent projections.

3. roof composed of overlappin strips of flexible waterproof material aid in courses, each strip having along one edge a plurality of projections with intervening spaces, each projection having parallel sides, an angular end, and aligned slits extending inwards from the converging endedges, each strip being laid with the end portion of each projection, below the slits, inserted in the space between adjacent projections of the next lower strip and partly 1 underlying said lower projections, whereby to interlock the strips in overlapped relation.

HERBERT ABRAHAM. 

